Abstract: A connector for interconnecting or mutually isolating two circuits one of which is connected to a first connector element (1) and the other of which is connected to a second connector element (2) which is interengageable with the first. One of the connector elements supports a first contact (12) connected to a respective circuit and a displaceable contact holder (4) carrying interconnected second (14) and third (15) contacts. The contact holder is displaceable between a first position in which the first (12) and second (14) contacts are separated and a second position in which the first and second contacts are interconnected. The connector elements are formed such that on interengagement the contact holder is displaced from the first to the second position after the third contact is interconnected with a contact (34) of the other connector element (2). The arrangement is such that on disengagement of the connector elements (1, 2) the contact holder is displaced from the second to the first position.

Abstract: A connector comprising first and second interengagable connector elements, the first comprising a socket and the second comprising a spigot insertable into the socket of the first element, wherein the first element supports at least one radially displaceable locking member protruding into the socket and a displaceable collar for controlling the radial position of the or each locking member. The second element defines at least one groove extending from adjacent an end of the spigot and aligned to receive the or a respective locking member projecting into the socket. The collar is displaceable relative to the first element between a first position in which the or at least one locking member is caused to project at least a first distance into the socket and a second position in which the or at least one locking member is caused to project at least a second distance in the socket, the first distance being greater than the second.

Abstract: A connector comprising first and second interengagable connector elements, the first comprising a socket and the second comprising a spigot insertable into the socket of the first element, wherein the first element supports at least one radially displaceable locking member protruding into the socket and a displaceable collar for controlling the radial position of the or each locking member. The second element defines at least one groove extending from adjacent an end of the spigot and aligned to receive the or a respective locking member projecting into the socket. The collar is displaceable relative to the first element between a first position in which the or at least one locking member is caused to project at least a first distance into the socket and a second position in which the or at least one locking member is caused to project at least a second distance in the socket, the first distance being greater than the second.